1.

The positive solutions of the equation ax + by + c = 0 always lie in the (A) 1st quadrant (B) 2nd quadrant (C) 3rd quadrant (D) 4th quadrant

Answer»

(A) 1st quadrant

We know that, if a line passes through the Ist quadrant, then all solution lying on the line in first quadrant must be positive because the coordinate of all points in the Ist quadrant are positive.



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